Bird feeder



FIG. 1 is a front elevational view of a bird feeder showing my new design, the rear being a mirror image of the front shown;

FIG. 2 is a right side elevational view thereof; the left side being a mirror image of the right side shown;

FIG. 3 is a is top plan view thereof; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for a bird feeder, as shown. 